In JavaFX if you want the user to be able to zoom the contents inside a scrollpane here’s a small gotcha that you have to be aware of: to accomplish this you must wrap the contents of the scroll node inside a group so that the visual bounds (not the layout bounds) are used for layout calculations.

Scrolling can than be attained by setting a scaling transform on the contents of the Scrollpane and adjusting the scale value to meet the specified zoom level.